set host chiark
set port 6667
if {![info exists nick]} { set nick Blight }
+if {![info exists ownfullname]} { set ownfullname "here to Help" }
set ownmailaddr blight@chiark.greenend.org.uk
-set ownfullname "here to Help"
if {![info exists globalsecret]} {
set gsfile [open /dev/urandom r]
unset gsfile
}
+proc try_except_finally {try except finally} {
+ global errorInfo errorCode
+ set er [catch { uplevel 1 $try } emsg]
+ if {$er} {
+ set ei $errorInfo
+ set ec $errorCode
+ if {[catch { uplevel 1 $except } emsg3]} {
+ append ei "\nALSO ERROR HANDLING ERROR:\n$emsg3"
+ }
+ }
+ set er2 [catch { uplevel 1 $finally } emsg2]
+ if {$er} {
+ if {$er2} {
+ append ei "\nALSO ERROR CLEANING UP:\n$emsg2"
+ }
+ return -code $er -errorinfo $ei -errorcode $ec $emsg
+ } elseif {$er2} {
+ return -code $er2 -errorinfo $errorInfo -errorcode $errorCode $emsg2
+ } else {
+ return $emsg
+ }
+}
+
proc sendout {command args} {
global sock
if {[llength $args]} {
}
proc onread {args} {
- global sock
+ global sock nick calling_nick errorInfo errorCode
if {[gets $sock line] == -1} { set terminate 1; return }
regsub -all "\[^ -\176\240-\376\]" $line ? line
set org $line
+
+ set ei $errorInfo
+ set ec $errorCode
+ catch { unset calling_nick }
+ set errorInfo $ei
+ set errorCode $ec
+
if {[regexp -nocase {^:([^ ]+) (.*)} $line dummy prefix remain]} {
set line $remain
+ if {[regexp {^([^!]+)!} $prefix dummy maybenick]} {
+ set calling_nick $maybenick
+ if {"[irctolower $maybenick]" == "[irctolower $nick]"} return
+ }
} else {
set prefix {}
}
upvar 1 n n
if {![regexp {^([^!]+)!} $p dummy n]} { error "not from nick" }
check_nick $n
- if {"[irctolower $n]" == "[irctolower $nick]"} { error "from myself" }
+ if {"[irctolower $n]" == "[irctolower $nick]"} {
+ error "from myself" {} {}
+ }
}
proc showintervalsecs {howlong} {
+ return [showintervalsecs/[opt timeformat] $howlong]
+}
+
+proc showintervalsecs/ks {howlong} {
if {$howlong < 1000} {
return "${howlong}s"
} else {
}
}
+proc format_qty {qty unit} {
+ set o $qty
+ append o " "
+ append o $unit
+ if {$qty != 1} { append o s }
+ return $o
+}
+
+proc showintervalsecs/hms {qty} {
+ set ul {second 60 minute 60 hour 24 day 7 week}
+ set remainv 0
+ while {[llength $ul] > 1 && $qty >= [set uv [lindex $ul 1]]} {
+ set remainu [lindex $ul 0]
+ set remainv [expr {$qty % $uv}]
+ set qty [expr {($qty-$remainv)/$uv}]
+ set ul [lreplace $ul 0 1]
+ }
+ set o [format_qty $qty [lindex $ul 0]]
+ if {$remainv} {
+ append o " "
+ append o [format_qty $remainv $remainu]
+ }
+ return $o
+}
+
proc showinterval {howlong} {
if {$howlong <= 0} {
return {just now}
}
}
+proc channel_noone_seen {chan} {
+ global nick_onchans
+ foreach n [array names nick_onchans] {
+ upvar #0 nick_onchans($n) oc
+ set oc [grep tc {"$tc" != "$chan"} $oc]
+ }
+}
+
+proc process_kickpart {chan user} {
+ global nick
+ check_nick $user
+ if {![ischan $chan]} { error "not a channel" }
+ if {"[irctolower $user]" == "[irctolower $nick]"} {
+ channel_noone_seen $chan
+ }
+ upvar #0 nick_onchans($user) oc
+ set lc [irctolower $chan]
+ set oc [grep tc {"$tc" != "$lc"} $oc]
+ if {![llength $oc]} { nick_forget $user }
+ nick_case $user
+}
+
+proc msg_KICK {p c chans users comment} {
+ set chans [split $chans ,]
+ set users [split $users ,]
+ if {[llength $chans] > 1} {
+ foreach chan $chans user $users { process_kickpart $chan $user }
+ } else {
+ foreach user $users { process_kickpart [lindex $chans 0] $user }
+ }
+}
+
+proc msg_KILL {p c user why} {
+ nick_forget $user
+}
+
+set nick_arys {onchans username}
+
+proc nick_forget {n} {
+ global nick_arys
+ foreach ary $nick_arys {
+ upvar #0 nick_${ary}($n) av
+ catch { unset av }
+ }
+ nick_case $n
+}
+
+proc nick_case {n} {
+ global nick_case
+ set nick_case([irctolower $n]) $n
+}
+
proc msg_NICK {p c newnick} {
+ global nick_arys nick_case
prefix_nick
recordlastseen_n $n "changing nicks to $newnick" 0
recordlastseen_n $newnick "changing nicks from $n" 1
+ foreach ary $nick_arys {
+ upvar #0 nick_${ary}($n) old
+ upvar #0 nick_${ary}($newnick) new
+ if {[info exists new]} { error "nick collision ?! $ary $n $newnick" }
+ if {[info exists old]} { set new $old; unset old }
+ }
+ nick_case $newnick
}
-proc msg_JOIN {p c chan} { recordlastseen_p $p "joining $chan" 1 }
-proc msg_PART {p c chan} { recordlastseen_p $p "leaving $chan" 1 }
-proc msg_QUIT {p c why} { recordlastseen_p $p "leaving ($why)" 0 }
+proc msg_JOIN {p c chan} {
+ prefix_nick
+ recordlastseen_n $n "joining $chan" 1
+ upvar #0 nick_onchans($n) oc
+ lappend oc [irctolower $chan]
+ nick_case $n
+}
+proc msg_PART {p c chan} {
+ prefix_nick
+ recordlastseen_n $n "leaving $chan" 1
+ process_kickpart $chan $n
+}
+proc msg_QUIT {p c why} {
+ prefix_nick
+ recordlastseen_n $n "leaving ($why)" 0
+ nick_forget $n
+}
proc msg_PRIVMSG {p c dest text} {
prefix_nick
recordlastseen_n $n "talking to me" 1
set output $n
}
+ nick_case $n
if {[catch {
regsub {^! *} $text {} text
sendprivmsg $n "error: $rv"
} else {
manyset $rv priv_msgs pub_msgs priv_acts pub_acts
- foreach {td val} [list $n $priv_msgs $output $pub_msgs] {
+ foreach {td val} [list $n $priv_acts $output $pub_acts] {
foreach l [split $val "\n"] {
- sendprivmsg $td $l
+ sendaction $td $l
}
}
- foreach {td val} [list $n $priv_acts $output $pub_acts] {
+ foreach {td val} [list $n $priv_msgs $output $pub_msgs] {
foreach l [split $val "\n"] {
- sendaction $td $l
+ sendprivmsg $td $l
}
}
}
}
+proc msg_INVITE {p c n chan} {
+ after 1000 [list sendout JOIN $chan]
+}
+
+proc grep {var predicate list} {
+ set o {}
+ upvar 1 $var v
+ foreach v $list {
+ if {[uplevel 1 [list expr $predicate]]} { lappend o $v }
+ }
+ return $o
+}
+
+proc msg_353 {p c dest type chan nicklist} {
+ global names_chans nick_onchans
+ if {![info exists names_chans]} { set names_chans {} }
+ set chan [irctolower $chan]
+ lappend names_chans $chan
+ channel_noone_seen $chan
+ foreach n [split $nicklist { }] {
+ regsub {^[@+]} $n {} n
+ if {![string length $n]} continue
+ check_nick $n
+ upvar #0 nick_onchans($n) oc
+ lappend oc $chan
+ nick_case $n
+ }
+}
+
+proc msg_366 {p c args} {
+ global names_chans nick_onchans
+ if {[llength names_chans] > 1} {
+ foreach n [array names nick_onchans] {
+ upvar #0 nick_onchans($n) oc
+ set oc [grep tc {[lsearch -exact $tc $names_chans] >= 0} $oc]
+ if {![llength $oc]} { nick_forget $n }
+ }
+ }
+ unset names_chans
+}
+
+proc ta_anymore {} {
+ upvar 1 text text
+ return [expr {!![string length $text]}]
+}
+
proc ta_nomore {} {
upvar 1 text text
if {[string length $text]} { error "too many parameters" }
return -code return [concat [list $priv $pub] $args]
}
-proc ucmd_sendhelp {} {
- ucmdr \
-{Commands currently understood:
- help get this list of commands
- seen <nick> ask after someone (I'll tell them you asked)
- summon <username> invite a logged-on user onto IRC
-Send commands to be by /msg, or say them in channel with ! in front.} {}
+proc loadhelp {} {
+ global help_topics
+
+ catch { unset help_topics }
+ set f [open helpinfos r]
+ try_except_finally {
+ set lno 0
+ while {[gets $f l] >= 0} {
+ incr lno
+ if {[regexp {^#.*} $l]} {
+ } elseif {[regexp {^ *$} $l]} {
+ if {[info exists topic]} {
+ set help_topics($topic) [join $lines "\n"]
+ unset topic
+ unset lines
+ }
+ } elseif {[regexp {^!([-+._0-9a-z]*)$} $l dummy newtopic]} {
+ if {[info exists topic]} {
+ error "help $newtopic while in $topic"
+ }
+ set topic $newtopic
+ set lines {}
+ } elseif {[regexp {^[^!#]} $l]} {
+ set topic
+ lappend lines [string trimright $l]
+ } else {
+ error "eh ? $lno: $l"
+ }
+ }
+ if {[info exists topic]} { error "unfinished topic $topic" }
+ } {} {
+ close $f
+ }
}
-def_ucmd help { ta_nomore; ucmd_sendhelp }
+def_ucmd help {
+ upvar #0 help_topics([irctolower [string trim $text]]) info
+ if {![info exists info]} { ucmdr "No help on $text, sorry." {} }
+ ucmdr $info {}
+}
-def_ucmd ? { ta_nomore; ucmd_sendhelp }
+def_ucmd ? {
+ global help_topics
+ ucmdr $help_topics() {}
+}
proc manyset {list args} {
foreach val $list var $args {
}
}
-def_ucmd summon {
- set target [ta_word]
- ta_nomore
+proc check_username {target} {
if {
[string length $target] > 8 ||
[regexp {[^-0-9a-z]} $target] ||
![regexp {^[a-z]} $target]
} { error "invalid username" }
+}
+
+proc nickdb__head {} {
+ uplevel 1 {
+ set nl [irctolower $n]
+ upvar #0 nickdb($nl) ndbe
+ binary scan $nl H* nh
+ set nfn users/n$nh
+ if {![info exists ndbe] && [file exists $nfn]} {
+ set f [open $nfn r]
+ try_except_finally { set newval [read $f] } {} { close $f }
+ if {[llength $newval] % 2} { error "invalid length" }
+ set ndbe $newval
+ }
+ }
+}
+
+proc def_nickdb {name arglist body} {
+ proc nickdb_$name $arglist "nickdb__head; $body"
+}
+
+def_nickdb exists {n} {
+ return [info exists ndbe]
+}
+
+def_nickdb delete {n} {
+ catch { unset ndbe }
+ file delete $nfn
+}
+
+set default_settings {timeformat ks}
+
+def_nickdb set {n args} {
+ global default_settings
+ if {![info exists ndbe]} { set ndbe $default_settings }
+ foreach {key value} [concat $ndbe $args] { set a($key) $value }
+ set newval {}
+ foreach {key value} [array get a] { lappend newval $key $value }
+ set f [open $nfn.new w]
+ try_except_finally {
+ puts $f $newval
+ close $f
+ file rename -force $nfn.new $nfn
+ } {
+ } {
+ catch { close $f }
+ }
+ set ndbe $newval
+}
+
+proc opt {key} {
+ global calling_nick
+ if {[info exists calling_nick]} { set n $calling_nick } { set n {} }
+ return [nickdb_opt $n $key]
+}
+
+def_nickdb opt {n key} {
+ global default_settings
+ if {[info exists ndbe]} {
+ set l $ndbe
+ } else {
+ set l $default_settings
+ }
+ foreach {tkey value} $l {
+ if {"$tkey" == "$key"} { return $value }
+ }
+ error "unset setting $key"
+}
+
+proc check_notonchan {} {
+ upvar 1 dest dest
+ if {[ischan $dest]} { error "that command must be sent privately" }
+}
+
+proc nick_securitycheck {strict} {
+ upvar 1 n n
+ if {![nickdb_exists $n]} { error "you are unknown to me, use `register'." }
+ set wantu [nickdb_opt $n username]
+ if {![string length $wantu]} {
+ if {$strict} {
+ error "that feature is only available to secure users, sorry."
+ } else {
+ return
+ }
+ }
+ upvar #0 nick_username($n) nu
+ if {![info exists nu]} {
+ error "nick $n is secure, you must identify yourself first."
+ }
+ if {"$wantu" != "$nu"} {
+ error "you are the wrong user - the nick $n belongs to $wantu, not $nu"
+ }
+}
+
+def_ucmd who {
+ if {[ta_anymore]} {
+ set target [ta_word]; ta_nomore
+ set myself 1
+ } else {
+ prefix_nick
+ set target $n
+ set myself [expr {"$target" != "$n"}]
+ }
+ upvar #0 nick_case([irctolower $target]) nc
+ set nshow $target
+ if {[info exists nc]} {
+ upvar #0 nick_onchans($nc) oc
+ upvar #0 nick_username($nc) nu
+ if {[info exists oc]} { set nshow $nc }
+ }
+ if {![nickdb_exists $target]} {
+ set ol "$nshow is not a registered nick."
+ } elseif {[string length [set username [nickdb_opt $target username]]]} {
+ set ol "The nick $nshow belongs to the user $username."
+ } else {
+ set ol "The nick $nshow is registered (but not to a username)."
+ }
+ if {![info exists nc] || ![info exists oc]} {
+ if {$myself} {
+ append ol "\nI can't see $nshow on anywhere."
+ } else {
+ append ol "\nYou aren't on any channels with me."
+ }
+ } elseif {![info exists nu]} {
+ append ol "\n$nshow has not identified themselves."
+ } elseif {![info exists username]} {
+ append ol "\n$nshow has identified themselves as the user $nu."
+ } elseif {"$nu" != "$username"} {
+ append ol "\nHowever, $nshow is being used by the user $nu."
+ } else {
+ append ol "\n$nshow has identified themselves to me."
+ }
+ ucmdr {} $ol
+}
+
+def_ucmd register {
+ prefix_nick
+ check_notonchan
+ set old [nickdb_exists $n]
+ if {$old} { nick_securitycheck 0 }
+ switch -exact [string tolower [string trim $text]] {
+ {} {
+ upvar #0 nick_username($n) nu
+ if {![info exists nu]} {
+ ucmdr {} \
+ "You must identify yourself before using `register'. See `help identify', or use `register insecure'."
+ }
+ nickdb_set $n username $nu
+ ucmdr {} {} "makes a note of your username." {}
+ }
+ delete {
+ nickdb_delete $n
+ ucmdr {} {} "forgets your nickname." {}
+ }
+ insecure {
+ nickdb_set $n username {}
+ if {$old} {
+ ucmdr {} "Security is now disabled for your nickname !"
+ } else {
+ ucmdr {} "This is fine, but bear in mind that people will be able to mess with your settings. Channel management features need a secure registration." "makes an insecure registration for your nick."
+ }
+ }
+ }
+}
+
+proc timeformat_desc {tf} {
+ switch -exact $tf {
+ ks { return "Times will be displayed in seconds or kiloseconds." }
+ hms { return "Times will be displayed in hours, minutes, etc." }
+ default { error "invalid timeformat: $v" }
+ }
+}
+
+proc def_setting {opt show_body set_body} {
+ proc set_show/$opt {} "
+ upvar 1 n n
+ set opt $opt
+ $show_body"
+ if {![string length $set_body]} return
+ proc set_set/$opt {} "
+ upvar 1 n n
+ upvar 1 text text
+ set opt $opt
+ $set_body"
+}
+
+def_setting timeformat {
+ set tf [nickdb_opt $n timeformat]
+ return "$tf: [timeformat_desc $tf]"
+} {
+ set tf [string tolower [ta_word]]
+ ta_nomore
+ set desc [timeformat_desc $tf]
+ nickdb_set $n timeformat $tf
+ ucmdr {} $desc
+}
+
+def_setting security {
+ set s [nickdb_opt $n username]
+ if {[string length $s]} {
+ return "Your nick, $n, is controlled by the user $s."
+ } else {
+ return "Your nick, $n, is not secure."
+ }
+} {}
+
+def_ucmd set {
+ prefix_nick
+ check_notonchan
+ if {![nickdb_exists $n]} {
+ ucmdr {} "You are unknown to me and so have no settings. (Use `register'.)"
+ }
+ if {![ta_anymore]} {
+ set ol {}
+ foreach proc [lsort [info procs]] {
+ if {![regexp {^set_show/(.*)$} $proc dummy opt]} continue
+ lappend ol [format "%-10s %s" $opt [set_show/$opt]]
+ }
+ ucmdr {} [join $ol "\n"]
+ } else {
+ set opt [ta_word]
+ if {[catch { info body set_show/$opt }]} {
+ error "no setting $opt"
+ }
+ if {![ta_anymore]} {
+ ucmdr {} "$opt [set_show/$opt]"
+ } else {
+ nick_securitycheck 0
+ if {[catch { info body set_set/$opt }]} {
+ error "setting $opt cannot be set with `set'"
+ }
+ set_set/$opt
+ }
+ }
+}
+
+def_ucmd identpass {
+ set username [ta_word]
+ set passmd5 [md5sum "[ta_word]\n"]
+ ta_nomore
+ prefix_nick
+ check_notonchan
+ upvar #0 nick_onchans($n) onchans
+ if {![info exists onchans] || ![llength $onchans]} {
+ ucmdr "You must be on a channel with me to identify yourself." {}
+ }
+ check_username $username
+ exec userv --timeout 3 $username << "$passmd5\n" > /dev/null \
+ irc-identpass $n
+ upvar #0 nick_username($n) rec_username
+ set rec_username $username
+ ucmdr "Pleased to see you, $username." {}
+}
+
+def_ucmd summon {
+ set target [ta_word]
+ ta_nomore
+ check_username $target
prefix_nick
upvar #0 lastsummon($target) ls
}
}
-def_ucmd newuser {
- global ownmailaddr ownfullname nick globalsecret
- prefix_nick
- if {[ischan $dest]} {
- error "You must register privately."
- }
- binary scan [irctolower $n] H* nhex
- if {[file exists users/$nhex]} {
- error "You (or someone else) have already registered the nick $n."
- }
- set ownermail [ta_word]
-
- set now [clock seconds]
- set small 100000
- set mult 6
- set ksecs [expr {$now / $small}]
- set kmod [expr {$ksecs % $mult}]
-
- if {[string length $text]} {
- if {![regexp -nocase {^([0-5])([0-9a-f]+)$} $text pass_sup kmod]} {
- }
- set ksecs [expr {(($ksecs - $kmod) / $mult) * 6 + $kmod}]
- }
- set tohash "$ksecs\n$ownermail\n"
- set hash [exec md5sum << $tohash]
- set passwd "$kmod[string range $hash 0 15]"
-
- if {[info exists pass_sup]} {
- if {"$passwd" != "$pass_sup"} {
- error "Incorrect registration password."
- }
- sendaction $n "ignores your ok"
- } else {
- set mailmsg \
-"From: $ownmailaddr ($ownfullname)
-Subject: $nick registration
-To: $ownermail
-
-Thanks for starting the registration process. You must now issue the
-`newuser' command with both the same email address again, and your
-registration password from this mail.
-
-Nick: $n
-Email address: $ownermail
-Password: $passwd
-
-This password will be valid for approximately the next 600ks
-(or until I am restarted).
-
-For example,
- /msg $nick newuser $ownermail $passwd"
- exec /usr/sbin/sendmail -odi -oee -oi -t << $mailmsg
- sendaction $n "has sent your registration mail to $ownermail."
- }
-}
+proc md5sum {value} { exec md5sum << $value }
def_ucmd seen {
global lastseen nick
#fconfigure $sock -translation binary
fconfigure $sock -translation crlf
- sendout USER guest 0 * $ownfullname
+ sendout USER blight 0 * $ownfullname
sendout NICK $nick
fileevent $sock readable onread
}
+loadhelp
+
#if {![regexp {tclsh} $argv0]} {
# vwait terminate
#}
~mdw / ircbot / blobdiff